Possible Clues:

• Tell dog to follow sappers
• On track to sell direct
• Note queue in market
• Get the end on again, but not of the whole sale, it seems
• That's just about the end of the business
• Trade one included in subsequent return
• Sort of business one might do with three blind mice
• Business to help blind mice?
• I alter for trade that sells to public
• Sell (goods) to public